Fig 1.
Analysis of raw current data and dQ/dI curve.
(a) Current variation curves of battery CY45-0.5/1#9 in different cycles (b) dQ/dI curve of battery CY45-0.5/1#9 in different cycles.
Fig 2.
(a) The relationship between the HFs of battery CY45-0.5/1#9 and the cycle periods (b) the relationship between the capacity of battery CY45-0.5/1#9 and the cycle periods.
Table 1.
Pearson correlation coefficient of the extracted health features.
Fig 3.
Overall framework diagram.
Fig 4.
SOH estimation results and errors.
(a) and (b) represent the estimation results and errors of CY35-0.5/1#1 (c) and (d) represent the estimation results and errors of CY35-0.5/1#2(e) and (f) represent the estimation results and errors of CY45-0.5/1#9, (g) and (h) represent the estimation results and errors of CY45-0.5/1#10.
Table 2.
RMSE, MAE and R2 of SOH estimation of different models on NCM datasets.
Fig 5.
SOH estimation results and errors.
(a) and (b) represent the estimation results and errors of CY25-0.25/1#1(c) and (d) represent the estimation results and errors of CY25-0.25/1#2.
Table 3.
RMSE, MAE and R2 of SOH estimation of different models on NCA datasets.